/* note: taken from PDCLIB, thanks for this great library */

#include <string.h>
int strcmp( const char * s1, const char * s2 )
{
    while ( ( *s1 ) && ( *s1 == *s2 ) )
    {
        ++s1;
        ++s2;
    }
    return ( *(unsigned char *)s1 - *(unsigned char *)s2 );
}
